baber/WOPTO huggingface dataset:
Patent WO-2020256446-A1 (WO)
Inventor: BAE SOO JIN
IPC: A61B5/00
Filed: 2020-06-18
Abstract: An optical image system comprises a light source unit, a first polarization unit, a first image detection unit, a second polarization unit, and a second image detection unit. The light source unit generates light to be irradiated to an object to be measured, the first polarization unit transmits only components in a first polarization direction out of the light generated by the light source unit, the first image detection unit detects reflected light from the object to be measured, the second polarization unit blocks the components in the first polarization direction from the reflected light from the object to be measured, and the second image detection unit detects light which has passed through the second polarization unit. Accordingly, it is possible to provide not only an image in which a biological tissue having polarization characteristics is clearly extracted by using polarization, but also a bright background image around the tissue, thereby enabling more effective visualization of a biological tissue such as a nerve.
Patent WO-2021010754-A1 (WO)
Inventor: YOO DO HYUK
IPC: H05K3/46
Filed: 2020-07-15
Abstract: A printed circuit board according to an embodiment comprises: a first insulating layer; a first circuit pattern disposed inside or on the lower surface of the first insulating layer; a second circuit pattern disposed on the upper surface of the first insulating layer; and a second insulating layer disposed on the upper surface of the first insulating layer and surrounding the second circuit pattern, wherein the second circuit pattern and the second insulating layer are disposed so as to protrude above the second surface of the first insulating layer, and the height of the second circuit pattern is greater than the height of the second insulating layer.
Patent WO-2021040251-A1 (WO)
Title: Intra prediction method and device using the same, encoding and decoding method and device using the same based on intra prediction
Inventor: LV ZHUOYI
IPC: H04N19/176
Filed: 2020-07-29
Abstract: There is provided an intra prediction method and device, an encoding and decoding method and device based on the intra prediction. The intra prediction method includes: determining an intra prediction block, and acquiring intra prediction block information of the intra prediction block, wherein the intra prediction block information comprises at least intra prediction mode information, reference pixel information, and color component information; determining a linear interpolation filter for intra prediction according to the color component information, the reference pixel information, and the intra prediction mode information; calculating a predicted value of each pixel in the intra prediction block in the intra prediction mode, according to the reference pixel information and the determined linear interpolation filter, thereby improving the accuracy of intra prediction, making the internal texture of the prediction unit more natural, so that the energy of the image is more concentrated after encoding, and the encoding efficiency is improved.
Patent WO-2021071239-A1 (WO)
Title: Apparatus and method for manufacturing liquid phase cartridge capable of being inserted into electrically heated smoking article
Inventor: KIM JI-HYUN
IPC: A24F40/42
Filed: 2020-10-07
Abstract: The present invention relates to an apparatus for manufacturing a liquid phase cartridge capable of being inserted into an electrically heated smoking article, wherein the liquid phase cartridge comprises: a liquid phase; a moisture absorbent containing the liquid phase; a first wrapping member which surrounds the moisture absorbent; a cover which is disposed on the upper and lower sides of the moisture absorbent and has pores therein; and a second wrapping member for wrapping the moisture absorbent, wrapped in the first wrapping member, and the cover together. Provided is the apparatus for manufacturing the liquid phase cartridge capable of being inserted into the electrically heated smoking article, comprising: a feed device for supplying the moisture absorbent; a liquid phase supply device for supplying the liquid phase in consideration of the feeding rate of the moisture absorbent; a first wrapping device for wrapping the moisture absorbent with a first wrapping member after supplying the liquid phase; a first cutting device for cutting wrapped moisture absorbent rods into a constant size; an alignment device for aligning the cut moisture absorbent rods and a cover rod in order; a second wrapping device for manufacturing a liquid phase cartridge rod by wrapping the plurality of aligned moisture absorbent rods and the entire cover rod with a second wrapping member; and a second cutting device for cutting the liquid phase cartridge rod into a desired size.
Patent WO-2022010038-A1 (WO)
Title: Composite film and manufacturing method therefor
Inventor: SONG GWANG SEOK
IPC: C08J7/043
Filed: 2020-10-12
Abstract: The present invention relates to a composite film and a manufacturing method therefor, and, more specifically, to: a composite film which has flexibility by being thin and which is readily removed all at once; and a manufacturing method therefor. To this end, the present invention comprises: an aluminum layer; first and second adhesive layers attached to the upper and lower surfaces of the aluminum layer, respectively; first and second polymer film layers attached to the first and second adhesive layers, respectively; a pressure-sensitive adhesion layer attached to the second polymer film layer; a release liner attached to the pressure-sensitive adhesion layer; a primer layer applied on the first polymer film layer; and a surface coating layer applied on the primer layer.
Patent WO-2021107403-A1 (WO)
Title: 저채널 3차원 라이다센서를 이용한 희소점군 기반의 위치인식 방법 및 장치
Inventor: KIM TAE HYEONG
IPC: G05D1/02
Filed: 2020-10-20
Abstract: 본 발명은 저채널 3차원 라이다센서를 이용한 희소점군 기반의 위치인식 방법 및 장치에 관한 것으로, 더욱 상세하게는 저가의 저채널 3차원 라이다센서를 이용하여 점군을 정합하고 필터링하여 자율 주행 차량의 위치를 인식함에 따라 저비용으로 자율 주행 차량의 위치 인식에 대한 정확도 및 정밀도를 향상시킬 수 있도록 하는 저채널 3차원 라이다센서를 이용한 희소점군 기반의 위치인식 방법 및 장치에 관한 것이다.
Patent WO-2021107467-A1 (WO)
Title: 공작기계 공구매거진과 주축 사이의 공구교환방법
Inventor: SIM JAE DOO
IPC: B23Q3/155
Filed: 2020-11-12
Abstract: 본 발명은 주축과 공구매거진이 공구교환위치에 정렬 단계(S100)와, 상기 주축에 파지하고 있던 공구를 상기 공구매거진의 공구포트에 삽입하는 공구 삽입 단계(S200)와, 상기 공구매거진과 주축이 동일한 방향으로 회동하면서 상기 주축의 공구를 공구매거진의 공구포트로 인계하는 공구 반환 단계(S300)와, 상기 공구매거진이 주축에 제공할 새로운 공구가 공구교환위치에 오도록 회전한 후, 상기 주축이 상기 공구의 후단부로 전진하여 상기 공구를 파지하는 공구 파지 단계(S400)와, 상기 공구를 파지한 주축이 상기 공구매거진의 공구포트로부터 후퇴 이동하는 주축 공구 장착 단계(S500)를 포함한다.
Patent WO-2021096311-A1 (WO)
Title: Bathroom structure using horizontal molding system
Inventor: LIM AHYEON
IPC: E04F19/06
Filed: 2020-11-13
Abstract: The present invention relates to a bathroom structure using a horizontal molding system, the system being for finishing the inner walls of a bathroom. The present invention comprises, as main elements, an interior material module (100), a lateral molding member (200) and a longitudinal molding member (300) so that: upper and lower panels, for finishing a bathroom wall, are constructed by assembly by means of the longitudinal and lateral molding members, and the upper and lower panels are enlarged so as to minimize a connecting portion between the panels, and thus on-site constructability is improved; and the position of a holder may be freely moved by means of the combination of the upper and lower panels, and by means of a hook groove part which is formed in the lateral molding member, and thus a customized bathroom space which meets user preferences may be provided.
Patent WO-2021194041-A1 (WO)
Title: 진공자외선을 이용한 정전기제거장치의 온오프 제어 시스템
Inventor: LEE DONG HOON
IPC: H05F3/00
Filed: 2020-11-20
Abstract: 본 발명에 따른 진공자외선을 이용한 정전기제거장치의 온오프 제어 시스템은 내부가 불활성가스로 충진되고, 일측에 피대전체가 진입하는 입구가 형성된 진공 챔버, 상기 진공 챔버 내부에 설치되며, 감지 범위 내에 들어오는 피대전체를 감지하는 센서모듈, 상기 진공 챔버 외부에 배치되며, 상기 센서모듈로부터 피대전체에 대한 감지 신호를 전달받아 정전기제거장치를 온오프 제어가 가능하고, 정전기제거장치의 조사 시간을 조절할 수 있는 제어모듈 및 상기 진공 챔버 내부에 배치되어 상기 제어모듈에 의해 온오프 제어되며, 피대전체의 상부에 진공자외선 광을 조사하여 피대전체의 정전기를 중화시키는 정전기제거장치를 포함한다.
Patent WO-2022014796-A1 (WO)
Title: Portable charging device for electric vehicle battery
Inventor: KANG DAE KEUN
IPC: G01N27/22
Filed: 2020-11-24
Abstract: The present invention relates to a portable electric vehicle battery charging device, which is portable and movable and thus can charge various e-mobility batteries having different charging conditions at a desired place, and can minimize damage caused by an increase or a decrease in a battery output voltage under each charging condition. The charging device may comprise: multiple charging adapters which are correspondingly coupled to inlets of electric vehicles having different charging conditions, and to which RFID tags are attached, respectively, each of the RFID tags storing charging type information related to the characteristics and charging specifications of the electric vehicles to which the charging adapters are coupled; one charging connector which is coupled to all the multiple adapters and includes an RFID reader for reading the RFID tags, when one adapter is selected and coupled, and acquiring output type information; and a battery pack which is connected to the connector by a cable and provides, on the basis of the type information, charging power corresponding to a charging condition of an electric vehicle to the electric vehicle, wherein the battery pack may comprise: a battery part comprising multiple battery modules, each of which comprises battery cells; an output-voltage output part for selecting a charging level from a charging condition according to the type information, and converting electrical connection between the multiple battery modules on the basis of the selected charge level to adjust a battery output voltage; and a charging voltage generation part for decreasing or increasing the output voltage to output a charging voltage corresponding to the charging condition.
Patent WO-2021107612-A1 (WO)
Inventor: KWAK JUN-SEOK
IPC: C12N5/071
Filed: 2020-11-25
Abstract: The present invention relates to cell line sVERO 7C2, which is a Vero cell line that is derived from Vero cells (African green monkey kidney cell line) acquired from WHO and can be suspension-cultured without serum components. In addition, the present invention relates to a culture method for growing the Vero cells and a method for preparing viruses for vaccines by using the Vero cells.
Patent WO-2021141286-A1 (WO)
Title: Method and device for selecting sidelink frequency resource in wireless communication system
Inventor: PARK DONG HYUN
IPC: H04W92/18
Filed: 2020-12-21
Abstract: The present disclosure relates to a method and device for selecting a sidelink frequency resource in a wireless communication system. A method for a transmission terminal to select a sidelink frequency resource in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of: determining one or more available frequency resources for transmitting sidelink data which lacks priority information; selecting one or more frequency resources from among the determined one or more available frequency resources; and transmitting the sidelink data to a reception terminal on the selected one or more frequency resources.
Patent WO-2021137658-A1 (WO)
Title: Method and apparatus for reciprocity based csi-rs transmission and reception
Inventor: RAHMAN MD SAIFUR
IPC: H04B7/06
Filed: 2020-12-31
Abstract: A method for operating a user equipment (UE) comprises receiving configuration information for at least one channel state information reference signal (CSI-RS) resource that comprises P  CSIRS  CSI-RS ports; receiving configuration information for channel state information (CSI) feedback that is based on Q precoding dimensions, wherein: there is a mapping between the P  CSIRS  CSI-RS ports and the Q precoding dimensions, and  P  
   CSIRS    
 ≠ Q  ; measuring the P  CSIRS  CSI-RS ports; determining a measurement for the Q precoding dimensions based on the mapping and the measurement for the P  CSIRS  CSI-RS ports; determining a CSI feedback based on the measurement for the Q precoding dimensions; and transmitting, over an uplink (UL) channel, the determined CSI feedback.
Patent WO-2021172900-A1 (WO)
Inventor: YANG BO GIE
IPC: A23L33/135
Filed: 2021-02-25
Abstract: The present invention relates to a Lactobacillus Helveticus strain and a composition containing same for prevention or treatment of inflammatory diseases. The  Lactobacillus Helveticus  strain (accession number: KCTC 14110BP) of the present invention alleviates symptoms, such as a weight loss and an intestinal length reduction, of inflammatory bowel diseases, and has no side effects resulting from existing medications. Therefore, the Lactobacillus Helveticus strain can be advantageously used in the treatment and prevention of inflammatory diseases, especially, inflammatory bowel disease.
Patent WO-2021215665-A1 (WO)
Inventor: PARK SANG WON
IPC: A61G10/00
Filed: 2021-03-12
Abstract: The present invention provides a system for collecting a specimen from a patient with an infectious disease, the system comprising: a first booth where an examiner enters; a second booth which is spatially divided from the first booth and in which a specimen is collected from a subject to be tested; a panel structure which is disposed to divide the first booth and the second booth, is transparent such that the subject to be tested can be seen from the first booth, and has a pair of insertion openings; and glove assemblies mounted on the panel structure and worn on the examiner's hands.
Patent WO-2021201503-A1 (WO)
Inventor: PARK OK NAM
IPC: A61P19/02
Filed: 2021-03-25
Abstract: The present invention relates to an oral pharmaceutical composition comprising a combined herb extract of Longanae Arillus, Ligustici Tenuissimi Rhizoma and Polygalae radix, the present inventors demonstrated that the anti-arthritic effect of inventive combined composition is potent by accomplishing in vitro experiments such as the inhibitory test on the expression of cytokines involved in inflammation (RPLPO, TSLP, GM-CSF and IL-1beta) (Experimental Example 1); Cell viability test on HT-29 and THP-1 cell (in vitro Experimental Example 2); Anti-inflammatory activity in THP-1 cell (in vitro, Experimental Example 3); inhibitory effect on autophagy activity (in vitro, Experimental Example 4.) as well as in vivo experiments such as inhibitory effect on arthritis using by arthritis-induced rat animal model (in vivo, Experimental Example 5), therefore, it is confirmed that inventive combined extract is very useful in the alleviation or treatment of inflammatory disease and arthritis disease as a form of oral pharmaceutical composition.
Patent WO-2022045525-A1 (WO)
Title: 전기 삼투 방식을 이용한 양극 활물질 탈수 장치 및 그 탈수 장치를 포함하는 탈수 설비
Inventor: JEON SE JWONG
IPC: H01M4/36
Filed: 2021-05-17
Abstract: 본 발명은 세정 공정을 거친 양극 활물질이 수용되며, 상기 양극 활물질에 전기장을 가하여 전기 삼투 방식으로 상기 양극 활물질에 잔존하는 세정액을 탈수시키는 전기 삼투 방식을 이용한 양극 활물질 탈수 장치를 제공한다. 따라서 기계적 힘에 의한 탈수 후에도 양극 활물질에 잔존하는 수분을 제거할 수 있는 장점이 있다.
Patent WO-2023277212-A1 (WO)
Title: 생체 정보를 이용한 퍼지 커밋먼트 기반 퍼지 축출 시스템 및 폐기 가능 생체 정보 보안 시스템
Inventor: HAN SUNG-EUN
IPC: H04L9/08
Filed: 2021-06-29
Abstract: 본 발명의 목적은 데이타베이스에 생체 정보를 저장하지 않는 생체 기반 본인 인증 및 키를 생성하는 생체 정보를 이용한 퍼지 커밋먼트 기반 퍼지 축출 시스템 및 생체 코드 원본을 데이타베이스에 저장하지 않고 원본 코드로부터 폐기 가능 템플릿을 생성 및 저장하여 인증하는 폐기 가능 생체 정보 보안 시스템을 통해 기존의 방식과 전혀 다른 새로운 방식으로 보안을 유지함과 아울러 인식률 및 오류율의 변화가 전혀 없어 인식률 감소 또는 에러율 증가에 대한 걱정 없이 사용이 가능한 생체 정보를 이용한 퍼지 커밋먼트 기반 퍼지 축출 시스템 및 폐기 가능 생체 정보 보안 시스템을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명에 따른 생체 정보를 이용한 퍼지 커밋먼트 기반 퍼지 축출 시스템는, 사용자의 생체 정보가 입력되는 입력부; 및 입력된 입력된 상기 생체 정보를 비트 단위 암호화를 이용하여 등록 및 인증하는 인증부;를 포함하며, 상기 인증부는 퍼지 축출기에 의해 인증하는 것을 특징으로 한다.
Patent WO-2022065731-A1 (WO)
Inventor: LEE SANGYONG
IPC: G01R27/26
Filed: 2021-09-02
Abstract: 일 실시예에 따른 조리 장치는 알람부; 글래스 및 정전 용량 센서 패널을 포함하는 쿠킹 플레이트; 및 상기 쿠킹 플레이트의 정전 용량 변화를 기초로 조리 용기의 위치에 대응되는 기준 위치를 결정하고, 상기 기준 위치로부터 거리에 따른 상이한 가중치가 부여된 상기 쿠킹 플레이트 상에 복수의 영역을 결정하고, 상기 가중치가 적용된 상기 쿠킹 플레이트의 정전 용량의 변화 값이 미리 결정된 값을 초과하면 상기 알람부가 경고 메시지를 출력하도록 제어하는 제어부;를 포함할 수 있다.
Patent WO-2022065903-A1 (WO)
Inventor: LEE SANGHYUN
IPC: H04W48/16
Filed: 2021-09-24
Abstract: An electronic device is provided. The electronic device comprises at least one processor. The at least one processor may be configured to: select at least one first RF path; perform first communication on the basis of the at least one first RF path; determine at least one second RF path simultaneously usable with the at least one first RF path; and perform second communication on the basis of at least a part of the at least one second RF path. A first baseband signal may be converted to a first RF signal on the basis of at least one piece of first hardware corresponding to the at least one first RF path. The first RF signal may be emitted as a first communication signal corresponding thereto. A second baseband signal may be converted to a second RF signal on the basis of at least one piece of second hardware corresponding to the at least one second RF path. The second RF signal may be emitted as a second communication signal corresponding thereto.
Patent WO-2022114874-A1 (WO)
Inventor: CHO SEUNG WOO
IPC: A61F2/08
Filed: 2021-11-29
Abstract: La présente invention concerne un gel tissulaire pour la transplantation et un procédé pour le fabriquer, le procédé comprenant les étapes suivantes : (a) la préparation d'une composition comprenant une matrice extracellulaire décellularisée ; (b) le maintien d'un état de tension par l'application d'une force de traction à un dispositif de traction constitué d'un matériau polymère élastique ; (c) l'injection de la composition préparée dans l'étape (a) dans le dispositif de traction dont l'état de tension est maintenu dans l'étape (b) et sa réticulation, puis l'élimination de la force de traction pour produire un gel tissulaire pour la transplantation dans lequel les faisceaux de fibres sont alignés dans la matrice extracellulaire décellularisée dans un seul sens.
Patent WO-2022124771-A1 (WO)
Title: 무선 전력 전송 페어링 방법 및 장치
Inventor: SEONG JAE YONG
IPC: B60L53/126
Filed: 2021-12-07
Abstract: V2G WPT 정밀포지셔닝 절차에서 페어링 절차를 동시에 수행하는 무선 전력 전송 페어링 방법 및 장치가 개시된다. 무선 전력 전송 페어링 방법은, 전기차의 2차측 장치가 전기차 전력공급장치의 1차측 장치 상의 정렬 허용 영역 내에 위치하는 것을 나타내는 LF 신호를 감지할 때, 전기차를 주차하고 전력공급장치 통신제어기(SECC)로 결과 코드 파라미터가 성공으로 설정된 정밀포지셔닝 요청 메시지를 보내고, SECC로부터 응답 코드 파라미터가 OK로 설정된 정밀포지셔닝 응답 메시지를 받은 직후에, SECC로 식별자 코드 파라미터가 페어링 식별 코드로 설정되고 EV프로세싱 파라미터가 종료로 설정된 페어링 요청 메시지를 전송하는 단계를 포함한다.
Patent WO-2022149789-A1 (WO)
Inventor: SHIM YONGSOO
IPC: A61B5/16
Filed: 2021-12-29
Abstract: A post-operative delirium prediction method using electroencephalogram analysis comprises the steps in which: an analysis apparatus receives pre-operative electroencephalogram data of a subject; and the analysis apparatus predicts whether the subject will develop post-operative delirium on the basis of the intensity of each frequency band of the electroencephalogram data.
Patent WO-2022173131-A1 (WO)
Title: 방수 구조물을 포함하는 전자 장치
Inventor: CHO SUNGGUN
IPC: G06F1/16
Filed: 2022-01-10
Abstract: 본 발명의 다양한 실시 예들에 따르면, 제1 하우징에 포함된 제1 관통홀 및 제2 하우징에 포함된 제2 관통홀을 경유하는 적어도 하나의 연성 회로 기판과; 상기 제1 관통홀을 덮으면서 상기 연성 회로 기판을 지지하는 제1 지지 브라켓과; 상기 제2 관통홀을 덮으면서 상기 연성 회로 기판을 지지하는 제2 지지 브라켓과; 상기 제1 지지 브라켓으로부터 상기 제1 관통홀의 일부 영역을 향하도록 배치되어 상기 제1 관통홀의 일부 영역에 삽입되는 제1 방수 부재와; 상기 제1 관통홀의 나머지 영역에 삽입되는 제2 방수 부재와; 상기 제2 지지 브라켓으로부터 상기 제2 관통홀의 일부 영역을 향하도록 배치되어 상기 제2 관통홀의 일부 영역에 삽입되는 제3 방수 부재와; 상기 제2 관통홀의 나머지 영역에 삽입되는 제4 방수 부재를 포함하는 전자 장치가 개시된다.
Patent WO-2022191455-A1 (WO)
Title: Electronic device for performing file redaction, and operation method thereof
Inventor: GIL YEONGJIN
IPC: H04L9/40
Filed: 2022-02-14
Abstract: Disclosed is an electronic device comprising a processor and a memory connected to the processor and storing instructions, wherein the instructions are configured to, when executed by the processor, cause the processor to, in response to a file generation request from an application: request a media provider to generate a file through a fuse, request a file system to generate the file through the media provider, generate the file through the file system, and store configuration information indicating the scope of sensitive information and access authority of the file in a metadata block and/or a designated area of the file. Various other embodiments understood through the specification are also possible.
Patent WO-2022211424-A1 (WO)
Title: Procédé et appareil de gestion de session
Inventor: LEE HOYEON
IPC: H04W48/18
Filed: 2022-03-28
Abstract: La divulgation concerne un procédé et un système de communication permettant de faire converger un système de communication 5G pour prendre en charge des débits de données supérieurs à ceux d'un système 4G avec une technologie associée à l'IdO. La divulgation peut être appliquée à des services intelligents basés sur la technologie de communication 5G et sur la technologie associée à l'IdO, tels que des maisons intelligentes, des bâtiments intelligents, des villes intelligentes, des voitures intelligentes, des voitures connectées, des soins de santé, l'enseignement numérique, le commerce de détail intelligent, et des services de sécurité et de sûreté. Un procédé mis en œuvre par une SMF consiste à déterminer de mettre à jour la disponibilité de tranche de réseau ; à transmettre, à une NSACF, un message de demande de mise à jour de disponibilité de tranche de réseau comprenant un ID d'UE et un ID de session PDU ; et à recevoir, en provenance de la NSACF, un message de réponse de mise à jour de disponibilité de tranche de réseau comprenant une indication de résultat. L'indication de résultat est associée à la mise à jour d'un certain nombre de sessions PDU par tranche de réseau sur la base de l'ID d'UE et de l'ID de session PDU.
Patent WO-2022220503-A1 (WO)
Inventor: KIM YONG-SAM
IPC: C12N9/22
Filed: 2022-04-08
Abstract: La présente invention concerne un système régulateur CRISPR. Plus particulièrement, la présente invention concerne les éléments suivants : un système régulateur CRISPR pour réguler efficacement l'expression d'un gène cible, comprenant une protéine de fusion Cas12f1 et un ARN guide Cas12f1 modifié ; et son utilisation. La présente invention concerne également un procédé de régulation de l'expression d'un gène cible en utilisant un système régulateur CRISPR comprenant une protéine de fusion Cas12f1 et un ARN guide Cas12f1 modifié.
Patent WO-2022220508-A1 (WO)
Title: Receptacle and electronic device comprising same
Inventor: CHOI JUNHWA
IPC: H01R13/6581
Filed: 2022-04-11
Abstract: An electronic device according to various embodiments of the present invention comprises: a housing which comprises a front cover arranged to face a first direction, a rear cover arranged to face a second direction opposite to the first direction, a side member arranged to surround at least a portion of the space between the front and the rear cover and comprising a connector hole, and a printed circuit board; and a receptacle at least a portion of which is rotatably assembled on the rear cover, and which is arranged at the opening of the connector hole, wherein the receptacle comprises: a first metal member comprising a plurality of connection pins and a protruding connection part connected to a plug; a door cover which is arranged to face the first metal member, and rotates towards the second direction around a hinge axis, if the plug is connected to the protruding connection part, and rotates towards the first direction around the hinge axis, if the connected plug becomes separated; and a second metal member which faces the first metal member and is coupled to the door cover. Various other embodiments may be possible.